The story of Una, exiled as a child to live in a lighthouse, removed from the physical and emotional abuse of a religion-mad father. It is the romantic adventure of a young woman setting sail in a cabin boy's disguise to encounter darkness, wonder, and catastrophe; the story of a devoted wife who witnesses her husband's destruction by obsession and madness. Ultimately it is the powerful and moving story of a woman's triumph over tragedy and loss through her courage, creativity, and intelligence.